select-trunc-i64.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
;RUN: opt -S -simplifycfg -mtriple=arm < %s | FileCheck %s
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"

define arm_aapcscc i32 @select_trunc_i64(i32 %a, i32 %b) {
; CHECK-LABEL: @select_trunc_i64(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[CONV:%.*]] = sext i32 [[A:%.*]] to i64
; CHECK-NEXT:    [[CONV1:%.*]] = sext i32 [[B:%.*]] to i64
; CHECK-NEXT:    [[ADD:%.*]] = add nsw i64 [[CONV1]], [[CONV]]
; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i64 [[ADD]], 2147483647
; CHECK-NEXT:    [[TMP0:%.*]] = icmp sgt i64 [[ADD]], -2147483648
; CHECK-NEXT:    [[COND:%.*]] = select i1 [[TMP0]], i64 [[ADD]], i64 -2147483648
; CHECK-NEXT:    [[EXTRACT_T:%.*]] = trunc i64 [[COND]] to i32
; CHECK-NEXT:    [[COND8_OFF0:%.*]] = select i1 [[CMP]], i32 2147483647, i32 [[EXTRACT_T]]
; CHECK-NEXT:    ret i32 [[COND8_OFF0]]
;
entry:
  %conv = sext i32 %a to i64
  %conv1 = sext i32 %b to i64
  %add = add nsw i64 %conv1, %conv
  %cmp = icmp sgt i64 %add, 2147483647
  br i1 %cmp, label %cond.end7, label %cond.false

cond.false:                                       ; preds = %entry
  %0 = icmp sgt i64 %add, -2147483648
  %cond = select i1 %0, i64 %add, i64 -2147483648
  %extract.t = trunc i64 %cond to i32
  br label %cond.end7

cond.end7:                                        ; preds = %cond.false, %entry
  %cond8.off0 = phi i32 [ 2147483647, %entry ], [ %extract.t, %cond.false ]
  ret i32 %cond8.off0
}